Carbonate Crusts at 385 Meters (image) Helmholtz Centre for Ocean Research Kiel (GEOMAR) Caption This image shows carbonate crusts at the observing site HYBIS at 385 meters water depth. For comparison: the white organisms in the right part of the picture have a length of about 15 cm. Carbonates of this size require several 100 years to build-up. Credit GEOMAR Usage Restrictions Usage in the context of this press release only. Other usage requires written permission by GEOMAR. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.